The Troublemaker singer quit the X Factor in February of last year amid rumours that he was about to be fired.

At the time he said it was to ‘concentrate on his music’ but it seems the No1 singer can’t keep away from our TV screens.

However, it seems that his ex-boss, Simon Cowell, isn’t too pleased about his big move.

Olly will join Will.i.am, Jenifer Hudson and Sir Tom Jones to swivel in the big red chair (Picture: ITV)An insider told the Sun ‘Simon isn’t happy Olly’s swapped allegiances, especially as he left the X Factor to concentrate on his music.’

The X Factor gave Olly his big break back in 2009 when he competed in the show and he returned as a co-host with Caroline Flack in 2015.

Olly previously said he was leaving the X Factor to concentrate on his music (Picture: Simone Joyner/Getty Images)

Despite the drama ITV are over the moon about the Voices new judge.

‘Olly Murs [is] a pop star at the top of his game who I know will bring his incredible energy, charm and personality. The panel really has got it in bucket loads and I can’t wait to see what happens next,’ said Siobhan Greene, Head of Entertainment, ITV.